GIF-star on white backgrounds

It's very hard to see the little favorite-star on gifs when the gif is pure white in that area, which is often the case with simple animations etc. It's white on white (so you can't see it), until you hover over it. I think adding a tiny amount of very large and blurry drop-shadow to it would make it so that it's always readable, and won't hurt the GIF itself if it's subtle enough. Just adds a tiny darkening to that corner underneath the star so it won't be pure white on pure white.

Simple fix, right? :)